P15250 33 Mark Warner Dr Florence Energy Efficiency Plan
ENERGY EFFICIENCY PLAN
Project Address: 33 Mark Warner Drive, Florence, MA
Conditioned Floor Area 2,118 ft2
Volume 19,243 ft3
Building Type Single family detached
Bedrooms 2
1. Assumptions for Preliminary Home Energy Rating
CET has completed a Preliminary Home Energy Rating with the following assumptions:
a) The construction plans you have provided are accurate, including window dimensions and locations.
b) Energy features not listed below in part c will meet the prescriptive requirements of the IECC 2009.
c) The home will be built to incorporate the following energy features:
Building Envelope Specifications Used in Analysis
Foundation Walls & Slab Floor Uninsulated Concrete
Floor over Unconditioned Basement R-30 Fiberglass Batts, Grade 3
Band Joists R-21 Fiberglass Batt, Grade 3
Exterior Walls, including to garage & attics R-21 Fiberglass Batt, Grade 2
Windows & Glass Doors U-value = 0.30 SHGC = 0.27
Exterior Doors R-5 / U-0.20
Ceilings & Attic Hatches
Flat Attics: 13” loose-blown Fiberglass (R-38)
Vaulted: R-38 Fiberglass Batts, Grade 3, 2x12 rafters with wind baffles
Ceiling & Wall Hatches: R-10+ Foamboard, fully gasketed
Blower Door Test* 3.0 ACH50 or better*
Thermal Enclosure Checklist, sections 3+5 Meet all Checklist Requirements as verified by a HERS rater at pre-
drywall and final inspection
* The 2009 IECC requires a blower door test result of 7 ACH50 or lower and the IECC 2012 requires 3 ACH50 or lower.
Mechanical Systems Specifications Used in Analysis
Heating Equipment 96.0 AFUE natural gas furnace
Cooling Equipment 14.0 SEER air conditioning, TXV or EXV valve included, properly
sized and documented on HVAC Contractor Checklist
Water Heating Equipment 0.67 Energy Factor natural gas tank water heater
Duct Leakage** <6 CFM25 leakage to outside per 100 sq ft of finished floor area
(<17.08 CFM25)
Duct Location & Insulation 25% Unconditioned Attic R-8; 65% Unconditioned Basement R-6;
10% Conditioned Space R-0
Whole House Ventilation Continuously operating, variable speed bath exhaust fan <1.0 sones,
44-52 CFM, Energy Star Certified
Lighting & Appliances Specifications Used in Analysis
Lighting 80% CFL, LED, or pin-based fluorescent
Refrigerator ENERGY STAR certified
Dishwasher ENERGY STAR certified
ENERGY EFFICIENCY PLAN
Page 2 of 2 ~ Please send signed form to the Center for EcoTechnology
Tel (413) 586-7350 ext.242 ~ Fax (413) 586-7351 ~ greenhome@cetonline.org
2. Preliminary Home Energy Rating Results
Based on the assumptions described above, we have calculated the following Preliminary Home Energy Rating results.
Preliminary HERS Index: 69
Preliminary Improvement Over 2014 Mass. Reference Home v2: 17.6% - Tier I*
Note that Confirmed Home Energy Rating results may vary from the Preliminary Home Energy Rating results due to
changes in building plans, energy features installed in the home, RESNET standards, software changes, and other
factors.
3. Services Requested
CET will provide a Confirmed Home Energy Rating for the purpose(s) indicated below. CET will charge fees for these
activities based on your Home Energy Rating Services Agreement.
• Stretch Energy Code compliance
• Incentives for the Mass Save Residential New Construction program – Tier I*
* = Mass Save Residential New Construction requirements and incentive amounts can change at any time without
notice at the discretion of program sponsors. We anticipate, but do not guarantee, that current program requirements
and incentive amounts will apply to this project as long as it is completed and inspected by November 30, 2016.
As part of these services, CET will verify that your home meets all the requirements of these programs.
Preliminary Rater: John Saveson
Date: 1/6/2015
Job #: P15250
I have reviewed and understand this Energy Efficiency Plan. I have reviewed the assumptions in part 1 and confirm that the
assumptions are correct.
Signature: Date:
Printed Name: Company: